Abstract: A flexible mold made of silicone for confectionery, bread-making or the like, can be used in traditional ovens and microwave ovens. The tray has a stiffened edge preferably of metallic wire dipped in the silicone or of plastic or metallic frame structure, co-stamped or manually inserted into the edge. This improves handling, especially with liquid products, while keeping those flexibility features that make it easy to remove fragile contents from the oven and to deform and flatten it in order to store it in reduced space.